Trying to import .OBJ from Magicavoxel to Blender, but it imports as a single large object?
Fortunately a plugin to import a .vox file without the need to convert to .obj https://github.com/RichysHub/MagicaVoxel-VOX-importer . Instructions on how to use it and caveats are on that page but will reproduce installation and basic usage instructions here:
Download io_scene_vox.py from the github page and install it into Blender.
In order to enable the add-on, you will need to have Testing add-ons visible within the Blender Preferences menu.

With the add-on installed and enabled, the importer can be accessed from File &gt; Import &gt; MagicaVoxel (.vox)

This add-on imports each voxel of the original model as an individual cube primitive. This opens up the use of voxel models for projects such as physics simulations.